Access to unverified_tx no longer needs a lock
Access to unverified_tx no longer needs a lock

Once the proxy thread jobs are created only they access this,
and they all run under the proxy thread, so there is no contention.

cryptapus/electrum,fujicoin/electrum-fjc,molecular/electrum,lbryio/lbryum,romanz/electrum,cryptapus/electrum-myr,pknight007/electrum-vtc,fujicoin/electrum-fjc,kyuupichan/electrum,aasiutin/electrum,fyookball/electrum,digitalbitbox/electrum,wakiyamap/electrum-mona,argentumproject/electrum-arg,kyuupichan/electrum,pknight007/electrum-vtc,FairCoinTeam/electrum-fair,wakiyamap/electrum-mona,fireduck64/electrum,romanz/electrum,spesmilo/electrum,cryptapus/electrum,asfin/electrum,kyuupichan/electrum,aasiutin/electrum,cryptapus/electrum-uno,protonn/Electrum-Cash,lbryio/lbryum,vertcoin/electrum-vtc,vialectrum/vialectrum,digitalbitbox/electrum,vertcoin/electrum-vtc,imrehg/electrum,imrehg/electrum,asfin/electrum,imrehg/electrum,vertcoin/electrum-vtc,cryptapus/electrum-myr,cryptapus/electrum-uno,FairCoinTeam/electrum-fair,vertcoin/electrum-vtc,procrasti/electrum,procrasti/electrum,neocogent/electrum,aasiutin/electrum,cryptapus/electrum-uno,vialectrum/vialectrum,asfin/electrum,aasiutin/electrum,dabura667/electrum,dashpay/electrum-dash,FairCoinTeam/electrum-fair,wakiyamap/electrum-mona,dabura667/electrum,wakiyamap/electrum-mona,pooler/electrum-ltc,pooler/electrum-ltc,vialectrum/vialectrum,dashpay/electrum-dash,romanz/electrum,pooler/electrum-ltc,fujicoin/electrum-fjc,fireduck64/electrum,fireduck64/electrum,neocogent/electrum,cryptapus/electrum-myr,argentumproject/electrum-arg,molecular/electrum,protonn/Electrum-Cash,neocogent/electrum,fyookball/electrum,dashpay/electrum-dash,procrasti/electrum,fyookball/electrum,dabura667/electrum,imrehg/electrum,spesmilo/electrum,procrasti/electrum,protonn/Electrum-Cash,digitalbitbox/electrum,pknight007/electrum-vtc,cryptapus/electrum-uno,argentumproject/electrum-arg,protonn/Electrum-Cash,FairCoinTeam/electrum-fair,molecular/electrum,fireduck64/electrum,dashpay/electrum-dash,pooler/electrum-ltc,spesmilo/electrum,dabura667/electrum,spesmilo/electrum,pknight007/electrum-vtc,cryptapus/electrum-myr,digitalbitbox/electrum,molecular/electrum,argentumproject/electrum-arg,cryptapus/electrum